Find the outputs
Answer to Problem 95P
The outputs
Explanation of Solution
Given data:
The state equation of input and output are,
Formula used:
Write the standard form of the state variable equation and for the output equation as follows.
Here,
A, B, C and D are state matrices.
x and z are variable matrices.
Write the formula to find the variable solution
Apply the Laplace transform for x,
Then the solution for the state variable equation can be written as follows.
Here,
I is the identity matrix.
Calculation:
Compare equation (1) with equation (3) and equation (2) with equation (4).
Apply the Laplace transform to above the z matrix.
From equation (2) expand the output equations as follows.
Then the output equations are,
Substitute
Simplify the above equation as follows.
From the above equation,
Apply the partial fraction expansion for the function in equation (9).
Compare the coefficients of
Then, the value of P is,
Therefore, from P, Q relation,
And
Substitute 0.8 for P, –0.8 for Q and –1.8 for R in equation (11).
Apply the inverse Laplace transform to the above equation using the formulas
and
Apply the partial fraction expansion for the function in equation (10).
Compare the coefficients of
Then, the value of E is,
Therefore, from E, F relation,
And
Substitute 1.4 for E, –1.4 for F and –4.4 for G in equation (13).
Apply inverse Laplace transform for the above equation.
Substitute equation (12) and equation (14) in equation (7) to find
Substitute equation (12) in equation (8) to find
Conclusion:
Thus, the outputs
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Chapter 16 Solutions
Fundamentals of Electric Circuits
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